心脏死亡器官捐献肾移植101例分析

目的探讨心脏死亡器官捐献（DCD）肾移植的临床效果。方法回顾性分析中山大学附属第一医院东院器官移植三区2011年7月至2013年7月完成的101例DCD肾移植供、受者临床资料。供者60例,男性42例,女性18例,年龄（28±13）岁（3～65岁）;符合DCD标准供者12例,符合DBCD标准供者48例;供者死亡原因为：脑外伤31例,脑血管疾病20例,脑肿瘤5例,溺水2例,一氧化碳中毒1例,窒息1例。受者101例,男性64例,女性37例,年龄（45±12）岁（14～70岁）。分析供肾质量、术后移植肾功能、受者生存率。结果供者初次和末次平均血清肌酐水平分别为（67±13）μmol／L和（121±86）μmol／L,供肾中位热缺血时间16min（11—30min）,中位冷缺血时间6．5h（4-20h）。25例供者的双侧供肾和35例供者的一侧供肾采用uw液静态冷保存（0～4℃）,35例供者的另一侧供肾采用LifePort机械灌注保存,灌注时间（5．6±2．2）h,流量为（99±25）mL／min,阻力系数为（0．29±0．11）mmHg·mL^-1·min^-1（1mmHg=0．133kPa）。受者术后发生原发性移植肾无功能1例,移植肾功能延迟15例,急性排斥反应11例。术后1,12个月移植肾肾小球滤过率（eGFR）分别为（59±16）mL·min^-1·（1．73m^2）^-1和（74±20）mL·min^-1·（1．73m^2）^-1;机械灌注和静态冷保存的移植肾功能无差异。20例供者行供肾病理活检,肾小球硬化比例为（13±7）％;4例供者供肾活检显示肾小球硬化比例〉20％,对应受者术后6个月血清肌酐水平为180～220μmol／L,eGFR为28—32mL·min^-1·（1．73m^2）^-1。结论DCD肾移植术后近期效果良好,是扩大供肾来源的有效途径。     

儿童器官捐献供肾肾移植疗效的临床研究

目的探讨儿童器官捐献供肾移植的近期临床疗效。方法回顾性分析2013年11月至2015年12月西安交通大学第一附属医院肾移植科完成的15例儿童器官捐献供者,供给28例肾移植受者(其中双肾移植2例)的供、受者临床资料。结果 28例受者手术均获成功。移植肾热缺血时间中位数为12.5 min(0~17.0 min),冷缺血时间中位数为4.3 h(1.5~7.7 h)。术后出现移植物功能延迟恢复(DGF)4例、透析1例、因肺部感染死亡2例、肾吻合口狭窄和供肾血栓形成后切除移植肾各1例。术后随访1~24个月,受者存活26例(93%),带肾存活受者24例(86%),其移植肾功能均正常。结论儿童器官捐献供者双肾整块移植及单肾移植早期临床疗效较好。     

心脏死亡供者供肾移植14例报告

目的 总结心脏死亡供者供肾的获取以及应用于临床肾移植的经验.方法 共7例心脏死亡供者捐献了供肾,进行了14例肾移植.7例供者年龄30～53岁,原发病为脑出血3例,颅脑外伤2例,脑基底动脉闭塞1例,颅脑肿瘤卒中1例;威斯康辛大学评分为19～23分,均为高危组.7例供者的所有近亲家属签署器官捐献知情同意的相关文件.临床评估供肾良好,供者心脏停跳2～5min后确定为心脏死亡,并采用腹腔多器官联合快速切取技术获取双侧肾脏.14例受者与供者HLA抗原错配数为2～4个,受者淋巴细胞毒交叉配合试验≤0.05,群体反应性抗体＜10％.7例供者中有6例的热缺血时间为5～10 min,1例为45 min;冷缺血时间为4.5～12.5 h.结果 利用心脏死亡供者供肾的14例肾移植手术均顺利完成.14例受者中,术后发生原发性移植肾无功能(PNF)1例,移植肾功能恢复延迟(DGF)3例,急性排斥反应2例;其中1例因PNF在术后第1天切除了移植肾,并恢复规律血液透析,1例因DGF仍在恢复中(尚处于术后3个月),血清肌酐149μmol/L,该2例受者均接受了热缺血时间为45 min的供肾;其余12例受者痊愈出院,移植肾功能均良好.结论 遵照《中国心脏死亡器官捐献指南》开展心脏死亡器官捐献工作,维护好潜在供者的各项重要生命指标,可以保证供肾质量;心脏死亡供者供肾可作为肾移植的重要器官来源,并且移植效果良好.     

儿童供肾双肾移植临床效果研究

目的探讨儿童逝世后器官捐献供肾双肾整块肾移植的临床效果。方法回顾性分析9例儿童供肾双肾移植供、受者临床资料。计算受者的1年人、肾存活率,观察术后1年受者肾功能恢复情况,移植肾长度变化及术后不良事件发生情况。结果 9例受者术后1年的人、肾存活率分别为8/9、72%。随访1年,血清肌酐(Scr)水平由术前(747±170)μmol/L下降至(83±27)μmol/L,血尿素氮由术前(24.5±4.9)mmol/L下降至(6.8±2.0)mmol/L,移植肾长度由术前(61.1±9.8)mm增长至(100.3±1.7)mm。术后发生移植物功能延迟恢复(DGF)2例,行血液透析过渡后恢复移植肾功能;发生急性排斥反应2例,予甲泼尼龙冲击治疗后逆转;1例于术后2周发生肺部真菌感染,停用免疫抑制剂,予抗真菌治疗,但效果不佳,于术后3个月死亡;1例术后7 d发生移植肾动脉血栓形成,术后10 d行移植肾切除术,恢复血液透析;1例术后1个月发生1个移植肾动脉栓塞,剩余移植肾功能正常,术后6个月生长明显。此外,发生移植肾输尿管狭窄2例、蛋白尿2例、腹主动脉狭窄1例、尿瘘1例,经相应处理后均治愈或好转。结论儿童逝世后器官捐献供肾双肾整块肾移植围手术期并发症较多,但随着经验逐步积累,儿童双供肾肾移植的移植效果在逐步改善。     

心脏死亡器官捐献供肾零点活检与受者程序性活检的临床分析

目的 通过分析心脏死亡器官捐献（DCD）供肾零点活检与程序性活检的结果,为DCD供肾的选择及术后评估提供病理学参考.方法 选取2011年7月至2013年1月解放军303医院5对符合中国人体器官捐献分类标准三类（C-Ⅲ）标准且缺血再灌注损伤（IRI）较重的DCD供肾进行零点活检,并于移植后3,6个月对相应受者进行程序性活检,观察供肾病理变化并进行分析.结果 5对供肾零点穿刺可见肾小球形态大致正常,近曲小管上皮细胞不同程度变性、坏死和脱落,损伤占肾皮质的30％～ 50％,远曲小管均未见坏死.受者均发生移植肾功能延迟恢复（DGF）,1例受者术后35 d死于肺部感染,1例拒绝活检.术后3个月对8例受者行程序性活检发现：7例近曲小管未见肾上皮细胞坏死,1例仍有≤20％的近曲小管坏死区域无明显改善;近曲小管上皮细胞均可见细小、等大空泡样变性;5例肾小球系膜轻度增生,提示钙调磷酸酶抑制剂（CNI）中毒.术后6个月非同源供肾2例再次接受活检,镜下分别见CNI中毒表现和慢性排斥反应表现.结论 对于符合C-Ⅲ标准的DCD供肾,IRI造成的损伤多在近曲小管且可逆,其余部位未受明显影响,肾功能可不同程度恢复,应用较为安全.近曲小管坏死在50％以内、远曲小管无损伤也许可作为评估供肾的病理学标准.CNI对移植肾组织结构的影响较显著,术后短期宜适当减少其用量以利于肾功能恢复。     

心脏死亡器官捐献供肾ABO血型不相容肾移植八例临床分析

目的探讨心脏死亡器官捐献(DCD)供肾ABO血型不相合肾移植临床疗效和安全性。 方法回顾性分析中国人民解放军联勤保障部队第九二四医院移植科2016年12月至2018年6月实施的8例DCD供肾ABO血型不相容肾移植受者临床资料,其中男性6例,女性2例,年龄26～54岁,群体反应性抗体(PRA)阳性4例,二次肾移植2例,供受者Rh(D)血型均为阴性。根据受者初始血型抗体效价及术前PRA抗体水平制定个体化预处理方案。术后常规监测受者免疫抑制剂血药浓度,重点监测尿量、肾功能、凝血状态和血型抗体水平,PRA阳性受者注意监测供者特异性抗体水平。 结果8例受者经个体化预处理后肾移植手术当天血型抗体IgG效价水平均≤1∶16。术后2周内7例受者血型抗体无反弹。截至2018年6月,8例受者平均随访时间6～18个月。病例1于术后第2周发生体液性排斥反应,采用蛋白A免疫吸附及大剂量丙种球蛋白冲击治疗后恢复。病例2术后2 h出现膀胱出血,持续膀胱冲洗保守治疗后止血,移植肾功能恢复正常。病例3术后第5个月并发严重肺部真菌感染,抗真菌治疗失败后并发呼吸衰竭死亡。病例6术后出现移植肾功能延迟恢复,予血液透析处理后恢复。病例7术后尿量少,术后第4天出现右下肢深静脉血栓(移植肾侧),行下腔静脉滤网植入及溶栓抗凝治疗,效果欠佳,移植肾失功后恢复血液透析治疗。病例8术后第2个月并发药物性糖尿病,目前血糖控制较好。其余2例受者移植肾功能恢复良好。 结论根据受者初始血型抗体效价及PRA水平进行个体化预处理,可安全、有效地实施DCD供肾ABO血型不相容肾移植。     

13例移植肾动脉感染破裂典型病例分析及总结

目的:对13例公民逝世后器官捐献(donation after citizen's death,DCD)移植术后肾动脉破裂案例进行分析总结。方法:回顾性分析郑州人民医院器官移植中心617例DCD供肾移植受者,其中因感染因素导致移植肾动脉破裂13例,通过供受者多种途径查找致病微生物,确定感染来源。结果:受者移植肾动脉破裂时间为术后6～86 d,致病微生物包括曲霉菌、毛霉菌、热带念珠菌、肺炎克雷伯杆菌及粘质沙雷菌等。10例受者切除移植肾,1例通过介入治疗保留移植肾。死亡3例,死因为消化道大出血、重症肺炎、失血性休克。结论:在供肾获取前,应取供者血液、尿液及伤口分泌物等进行病原学监测,阳性者给予敏感药物抗感染治疗,效果不佳者果断弃用。同一供者的一个受者出现移植肾动脉破裂,另一受者也应高度重视,立即抗感染治疗。遵守"先保命再保肾"原则,若感染无法控制,应尽早切除移植肾。对病史长、感染因素不确定的供肾,术后常规应用广谱抗细菌药物联合抗真菌药物预防感染,并根据培养结果和药物敏感试验及时调整治疗方案。     

儿童供肾给儿童肾移植术后肾动脉狭窄5例

目的分析儿童供肾给儿童肾移植术后移植肾动脉狭窄的临床特点, 探讨其发生发展的可能影响因素。方法回顾性总结华中科技大学同济医学院附属同济医院2014年5月1日至2021年6月30日期间89例儿童供肾给儿童肾移植受者随访过程中发生移植肾动脉狭窄的临床资料, 中位随访29个月内共发生移植肾动脉狭窄5例(5.6%)。5例儿童供者、受者的中位年龄分别为9个月和11岁, 2例为双供肾移植, 3例为单供肾移植, 肾动脉均采用端侧吻合。诊断移植肾动脉狭窄的中位时间为术后10个月(3～60个月), 除1例3岁受者发生时间较早外, 余4例均发生在儿童受者肾移植后的快速生长期, 身高最大增幅为30 cm。5例中3例有移植部位的再次手术史, 包括同侧再次肾移植手术1例和移植肾尿路重建术2例。5例儿童受者均表现为高血压、2例伴血肌酐升高。4例彩色多普勒超声检测移植肾动脉流速>300 cm/s, 5例CT血管造影或磁共振血管造影均示移植肾动脉狭窄, 程度50%～95%。结果 4例行球囊扩张后2例显著缓解, 1例复发后经支架置入好转, 1例效果不明显而最终移植肾功能丧失。1例观察6个月后狭窄自行部分缓解而暂未...     

成人移植婴幼儿供肾术后移植肾动脉狭窄

目的探讨成人受者接受小儿供肾移植术后发生的移植肾动脉狭窄临床特点、病因、诊断及治疗。方法回顾性分析2014年7月至2019年3月在华中科技大学同济医学院附属协和医院泌尿外科进行的25例小儿供者整块双肾移植和27例小儿供者单肾移植的临床资料(受者均≥18岁)。结果其中1例双肾移植成人受者(4.0%)和2例单肾移植受者(7.4%)在移植术后13～23个月诊断为移植肾动脉狭窄, 高于同期接受成人供肾的成人受者移植肾动脉狭窄率(1.1%)。移植肾动脉狭窄成人受者与非狭窄组比较, 其供者年龄更小(P<0.05), 但是供者、受者体重差异均无统计学意义(P>0.05)。狭窄部位内径1.40～1.63 mm, 均为移植肾动脉自供者腹主动脉起始部而非吻合口本身。肾动脉非狭窄段内径2.31～4.93 mm, 与相应年龄小儿正常肾动脉一致。3例移植肾动脉狭窄受者行经皮腔内血管成形及支架置入术后均得到有效治疗。结论移植肾动脉狭窄的原因可能与过度剥离肾动脉周围组织, 影响其术后继续发育相关。谨慎选择成人受者接受婴儿单供肾, 保留肾动脉周围组织可能有助于预防移植肾动脉狭窄。     

心脏死亡器官捐献供肾移植单中心60例经验总结

目的 探讨单中心DCD供肾移植的临床效果,总结DCD供肾移植的经验.方法 回顾性分析2011年12月至2013年4月间60例DCD和112例DCD供肾移植的临床资料.结果 依据《中国心脏死亡器官捐献指南》,实施DCD 60例,共捐献肾脏118个,实施肾移植112例.14例受者术后发生移植肾功能延迟恢复(DGF),发生率12.5％,其中未使用LifePort机械灌注冷保存DGF发生率23.1％ (6/26),使用LifePort移植肾DGF发生率9.3％(8/86).14例DGF受者4例切除移植肾,10例肾功能术后16～52 d恢复正常.急性排斥反应发生率6.3％(7/112),其中1例术后第12天移植肾破裂切除肾脏,其余经治疗后逆转.1例受者术后第15天因急性心肌梗死亡,1例术后第7天发生急性心功能衰竭死亡.移植肾存活的105例受者,随访1～15个月,移植肾功能正常.结论 在我国实施DCD切实可行,是符合伦理和我国国情的器官来源根本途径.DCD供肾移植临床效果良好,Lifeport具有清除肾脏残余微血栓、疏通肾脏微血管、评估肾脏功能及预防DGF的良好作用.     

Cadaveric kidney transplantation: five years experience at a single center

BACKGROUND: In the past, the majority of renal transplantations in Iran were from living donors, but recently cadaveric donation of organs is increasing. We reviewed our experience on kidney transplantation from cadaveric donors for the past 5 years in our center. METHODS: Between July 1998 and September 2004, 122 kidneys were removed from 61 cases of brain-dead patients and transplanted in 114 patients with end-stage renal disease in our center. Two kidneys had tumoral involvement and were discarded. Three kidneys were transplanted in other centers and three patients received en bloc kidney transplantations. In addition, we performed nine cases of heart, one case of liver, and one case of lung transplantations. All the recipients were followed for at least 1 year and posttreatment renal function and graft survival were determined. RESULTS: All cadaveric donors were brain dead due to car (30%) and motocycle (70%) accidents, with ages ranging from 5 to 56 years (mean, 24/4 years). The mean warm and total cold ischemia times were 7 minutes and 8.1 hours, respectively. The mean distance between harvesting center and our hospital was 65 km. The 1-year graft survival was 92.3%, with mean serum creatinine of 1.76 +/- 0.79 at 1 year. Of other transplanted organs, the liver and lung recipients died 24 hours and 45 days after operation. Among heart recipients, four are still alive. CONCLUSION: Cadaveric donors in developing countries including Iran can be excellent sources of organ donation.     

Long-term outcome of cadaveric pediatric en bloc transplantation--a 15-year experience

Pediatric en bloc transplantation of infant organs into adult recipients is a recognized technique to expand the number of kidneys available for transplantation. We reviewed our experience with this technique over a 15-year period to determine the long-term outcomes. Twelve patients underwent pediatric en bloc transplantation from donors aged <4 years. All transplants functioned immediately with no graft thrombosis. Two patients died 12 and 10 years posttransplant with functioning grafts. The remaining 10 recipients experienced excellent graft function with a mean follow-up time of 73.8 months (range, 10 to 169 months) with no evidence of hyperfiltration injury. We conclude that pediatric en bloc transplantations achieve excellent long-term allograft function in selected recipients.     

低龄心脏停跳供者单个肾脏成人移植11例

目的 总结符合脑死亡诊断标准的低龄患儿心脏停跳后供肾应用于成人移植的处理经验.方法 心跳停止后单个供肾患儿6例,月龄49～106(75.35±22.8)个月,体质量16.6～37.8(23.9±8.4)kg.受者11例,平均年龄(28.2±7.9)岁,体质量(46.9±4.2)kg.单个供肾植入受者右侧髂窝.手术方法同成人尸肾移植.术中开始单/多克隆抗体加甲泼尼龙诱导治疗,术后常规环孢素或他克莫司、霉酚酸酯、泼尼松三联免疫抑制剂治疗.结果 受者肾功能均恢复正常,其中出现移植肾功能延迟恢复3例.术后移植肾增大明显,灌注后和移植后1周移植肾长径分别为(70.6±5.5)和(86.1±6.9)mm(P＜0.001),之后移植肾持续缓慢增大,至术后12个月移植肾长径为(104.5±8.8)mm.平均随访时间(21.8±9.5)个月,1年人/肾存活率均为100%.结论 低龄心跳停止供者单个供肾植入低体重的成人受者,可以成功维持受者正常肾功能,1年人/肾存活率与成人尸肾移植无显著差异.     

Results of en bloc renal transplants of pediatric deceased donors into adult recipients

Various strategies have evolved to expand the donor pool due to the extreme shortage of organs. Herein we reviewed our experience with en bloc pediatric kidney transplantation since 1998. METHODS: From January 1998 to December 2004, nine adult patients underwent kidney transplantation using en bloc kidneys from donors <5 years old (range, 1 to 4). The mean age of the recipients was 45.1 years (range, 34 to 57). RESULTS: In recipients of en bloc pediatric transplantation, cold ischemia time ranged from 14 to 26.2 hours (mean, 21.3 hours). Mean serum creatinine at 3, 6, and 12 months after transplantation was 1.53 +/- 0.57, 1.27 +/- 0.27, and 1.15 +/- 0.26 mg/dL compared with 1.93 +/- 1.35, 1.81 +/- 1.17, and 1.73 +/- 0.85 (P = .08) in recipients of single kidneys from ideal cadaveric donors (UNOS criteria, n = 368). Patient and graft survival at 1 year were 88.8% compared with 91.2% and 85% with ideal donors (P = NS), respectively. Three cases required additional surgery. There was one death due to a cerebral vascular accident. CONCLUSION: The present study confirmed the excellent results achieved with transplantation using en bloc kidneys from young donors.     

Horseshoe kidney transplantation within the eurotransplant region: a case control study.

BACKGROUND: The horseshoe kidney is the most common anatomic renal variation, with an incidence of 1 in 600 to 800. It represents a fusion anomaly, usually of the lower poles. Horseshoe kidneys can be transplanted en bloc or after division of the renal isthmus. However, the great variation in origin, number, and size of renal arteries and veins leads to some reluctance to use horseshoe kidneys for transplantation. The aim of this study is to assess the results of horseshoe kidney transplantation. METHODS: All data concerning horseshoe kidney transplantations within the Eurotransplant region were collected and were divided into en bloc and split transplantations. A matched control group was defined, and the three groups were analyzed with respect to the occurrence of primary nonfunction, graft survival, patient survival, and finally posttransplant serum creatinine values. RESULTS: From 1983 to 2000, 8 horseshoe kidneys were transplanted en bloc and 26 were split and transplanted into 47 recipients. The results of these transplantations were compared with 110 transplantations in the control group. No significant differences among the three groups could be found, either in the short- or long-term posttransplant results. CONCLUSIONS: The results of horseshoe kidney transplantation, either en bloc or split, are equal to the posttransplant results of kidneys with a normal anatomy. Bearing in mind the shortage of donors, horseshoe kidneys should certainly be used for transplantation.     

Long-term follow-up of pediatric en bloc renal transplantation

We reviewed the outcomes of pediatric en bloc renal transplantation at two Canadian centers in the cyclosporine era. Between 1984 and 2002, 16 patients received pediatric en bloc renal transplants. Mean recipient age and weight were 45 +/- 17 years and 72.2 +/- 14.4 kg, respectively. En bloc kidneys were procured from donors aged 2.1 +/- 0.8 years (range, 0.7 to 4.0), weighing an average of 14.3 +/- 2.0 kg (range, 12 to 17). All en bloc kidneys were successfully transplanted without thrombosis. All patients received calcineurin inhibitors and corticosteroids. Only three patients received antibody-based induction therapy. Rejection episodes occurring in seven grafts were all successfully treated. Mean follow-up was 3.7 years (range 0.4 to 15.0). Mean serum creatinine values at 3 months and 1 and 3 years were 138.8 +/- 54.5 micromol/L, 118.6 +/- 38.1 micromol/L, and 95.1 +/- 24.4 micromol/L, respectively. The mean creatinine value of five patients with at least 5 years follow-up was 96.8 +/- 12.3 micromol/L. Three-year graft and patient survival rates were 94%. Two deaths with functioning grafts occurred secondary to cardiac and infectious etiologies. None of the grafts were lost independent of death. We conclude that en bloc transplantation has excellent short- and long-term results. Improving graft function after 3 years represented by reduced serum creatinine suggests that these kidneys have excellent renal reserve and growth potential.     

Transplantation of single and paired pediatric kidneys into adult recipients

Background:The transplantation of kidneys from cadaveric donors ≤ 5 years of age into adult recipients is controversial. The large disparity between donor renal mass and recipient body mass is feared to be problematic. Controversy also exists whether to transplant kidneys from these young donors individually or as a pair into a single recipient.Study Design:We retrospectively reviewed our experience from January 1991 to January 1995 with 22 adulrenal transplantations using kidneys from cadaveric donors ≤ 5 years of age. Ten patients received single allografts. Twelve received organs paired en bloc. Fiftytwo adult recipients from cadaveric donors aged 18–55 years served as controls. All patients received cyclosporine-based immunosuppression. Recipient characteristics did not differ significantly between the groups.Results:Actuarial patient and graft survival rates were similar for the two groups. The incidence of urinary complications was higher in the recipients of pediatric kidneys than in the adult-donor group (18.2% versus 3.8%, respectively, p = not significant). No grafts were lost from urinary complications. Renal function, as determined by the calculated creatinine clearance, was significantly greater in the pediatric group (76.1 ± 4.0 versus 61.4 ± 23.2 mL/min, p = 0.035) by 6 months after transplantation. Recipients of paired pediatric kidneys initially had better renal function (63.9 ± 21.4 mL/min) than those receiving single pediatric kidneys (38.2 ± 11.6 mL/min) (p = 0.004), but by 6 months, no significant difference existed. At 2 years, renal function in the pediatric-donor group remained significantly better than in the adult-donor group. Hematocrit levels as a measure of erythropoiesis were similar for single pediatric, paired pediatric, and adult-donor recipients.Conclusions:Kidneys from cadaveric donors ≤ 5 years of age are suitable for transplantation into adults. Pediatric kidneys provide excellent renal function despite an initially tremendous disparity between renal mass and recipient body mass. Rapid true renal growth probably occurs. No appreciable advantage is achieved by using two pediatric kidneys for a single recipient.     

Solitary renal allografts from pediatric cadaver donors less than 2 years of age transplanted into adult recipients

BACKGROUND: Transplantation of solitary pediatric renal allografts from donors 2 years of age or younger into adult recipients is controversial. METHODS: Between 1998 and 2001, 15 solitary renal allografts from pediatric donors 2 years of age or younger were transplanted into adult recipients. Thirty-three en bloc renal allografts transplanted between 1994 and 2001 were used for comparison. En bloc kidneys were considered for separation if they measured greater than or equal to 6 cm in length. Renal function (creatinine clearance [CrCl]) was estimated using the Cockroft-Gault formula. RESULTS: Two-year graft survival for the solitary and en bloc groups were 93% and 77%, respectively (P =0.405). Five grafts were lost because of arterial thrombosis (four en bloc and one solitary). Ureteral complications occurred in three grafts in the en bloc group. One-year postoperative CrCl of the surviving solitary (n=14) and en bloc (n=26) grafts were 51.4+/-26.2 mL/min and 55.1+/-27.5 mL/min (P >0.05), respectively. Donor weight and kidney length were greater in the solitary group (14.3+/-3.5 kg and 6.3+/-0.4 cm, respectively) compared with the en bloc group (10.8+/-2.6 kg and 5.9+/-0.3 cm, respectively) (P =0.001 and P <0.001). CONCLUSIONS: Separation of en bloc pairs into solitary allografts can be considered when the graft measures greater than or equal to 6 cm in length and donor weight is greater than or equal to 14 kg. The transplantation of solitary pediatric kidneys into adult recipients is successful, and the majority of pediatric en bloc allografts can be separated before transplantation.     

One-year follow-up of en bloc renal transplants from pediatric donors in adult recipients

Objectives

The optimal use of kidneys from small pediatric cadaveric donors remains controversial. The aim of this study was to analyze short-term graft and patient survivals of en bloc kidney transplantations compared with single cadaveric adult donor kidney transplantations.

Patients and methods

We compared the 1-year evolution of 14 adult recipients of en bloc pediatric kidney donors (EBKT) of median age 13.5 ± 14.5 months (range = 3 days to 48 months) with 182 recipients of ideal adult cadaveric donors (ADT) showing a median age of 30 ± 21 years (range = 14-45 years).

Results

Besides the different age and weight of the donors, EBKT recipients were more commonly women (P = .05) and received thymoglobulin induction treatment (P = .00). Delayed graft function was higher in EBKT (46.2% vs 22.2%, P = .05), with no differences in the incidences of acute rejection episodes. Mean serum creatinine values at 3, 6, and 12 months after transplantation were 1.1 ± 0.3, 1.1 ± 0.2, and 1.0 ± 0.2 mg/dL in the EBKT group, compared with 1.3 ± 0.5 (P = .16), 1.3 ± 0.5 (P = .02), and 1.3 ± 0.6 (P < .01) in the ADT group. Vascular allograft complications were more frequent among EBKT. Graft survival rate at 1 year was 92% in both groups, with no differences in patient survival (100% in EBKT vs 92% in ADT; P = .49).

Conclusions

EBKT from small pediatric donors show excellent graft function and 1-year survival and should be considered for transplantation into adults.